


MODEL: OTEC125 (SPEC B) - A066Y095 | 277/480V 3-Phase | NON-SERVICE RATED | NEMA3R ENCLOSURE
✅ IN STOCK - Ready to Ship
Cummins OTEC125 - Reliable Emergency Power Transfer for Commercial & Light Industrial Applications
The Cummins OTEC125 Transfer Switch delivers dependable automatic power transfer when your business needs it most. Engineered for commercial and light industrial facilities, this 125-amp, 3-phase transfer switch seamlessly monitors your primary power source, starts your generator, and transfers your critical loads during outages—keeping your operations running without interruption.
PowerCommand® 40 Control: Intelligence Meets Simplicity
At the heart of the OTEC125 is the advanced PowerCommand® 40-01 microprocessor control. This intuitive system features a clear LCD digital display and tactile soft-switches that make operation and programming straightforward—no complex manuals or guesswork required. All features, settings, and adjustments are software-enabled for precise configuration and easy troubleshooting.
Built for Real-World Performance
Advanced Linear Motor Technology
Unlike conventional transfer switches with wear-prone gears and linkages, the OTEC125 uses a bi-directional linear motor actuator that delivers virtually friction-free operation. This straight-line transfer mechanism provides constant force and reliable performance over thousands of switching cycles.
Service-Friendly Design
Minimize downtime with a design that puts maintenance first:
- Plug connections eliminate hard-wiring complexity
- Door-mounted controls provide instant access to settings
- Compatible terminal markings speed up installation and service
- Ample interior space makes wire management and troubleshooting simple
Safety You Can Count On
Dual interlocking systems—both mechanical and electrical—prevent dangerous source-to-source connections. Manual operation handles and shielded terminations allow safe switching under de-energized conditions, protecting your equipment and personnel.
Technical Specifications
- Current Rating: 125 Amperes
- Voltage: 277/480V 3-Phase
- Series: Spec B
- Enclosure: NEMA1, Non-Service Rated
- Dimensions: 34" H × 26.5" W × 12.5" D
- Weight: 135 lbs
- Applications: Emergency, legally required, and optional standby circuits
Why Choose the Cummins OTEC125?
Code Compliant – Suitable for emergency, legally required, and optional standby power systems per NEC requirements.
Weather Protection – NEMA 3R enclosure withstands outdoor installations and harsh environments.
Proven Reliability – Cummins' reputation for power solutions you can trust, backed by comprehensive support.
Future-Ready – Microprocessor control allows easy updates and feature additions as your needs evolve.
Perfect For:
- Office buildings and commercial facilities
- Retail centers and restaurants
- Healthcare clinics and medical offices
- Light industrial operations
- Data centers and IT facilities
- Any critical application requiring automatic power transfer
Protect your business continuity with the Cummins OTEC125 Transfer Switch—engineered reliability when every second of uptime matters.